Mercury or quicksilver still.



PATENTED MAY1-4, 1907.

B. A. LAGKMANN. MERCURY 0R QUIOKSILVER STILL.

APPLIOATION FILED NOV. 14, 1906. I

III

Hllil ulllmmum Illllllilm I nnlmnnlllin illill UNITED STATES PATENT ornion.

. R RAYMOND ANTON LAOKMANN, OF PORTLAND, OREGON.

IVIERCURY OR QUICKSILVER STILL.

Specification of Letters Patent. Application filed November 14,

Patented May 14, 1907. 1906. SerialNo. 343,460.

' steady low heat in the different shaped stills in the accompanying drawings in each of which the same principle is involved. I In the accompanying drawings, Figure 1 1s a perspective view of the complete still.

ig. 2 is a similar view partly broken awayand with the top detached. Fig. 3 is a perspective view of a modified form of still. Fig. 4, is a detailed view of parts A and B of Figs. 1, 2 and 3. Fig. 5 is another modification, and Fig. 6 is the same broken away and with the top removed. Fig. 7 shows still another modification.

In Figs. 1 and 2 A is a bottom which is made of copper plate in a somewhat conical shape and which is silver plated on the lower side on which the vapors of mercury collect when the process of distillation is going on.

B is a flanged cast iron ring to which the copper plate is fastened by rivets the heads of the rivets being countersunk making or leaving this part smooth and even to make an even joint when the same is placed on the mercury holding pot below, and bolted or screwed down tight by the screws rendering the joint-airtight.

O is an annular light sheet steel receptacle riveted to the flanged casting for holding water if necessary as a protection for thel silver plating to prevent expansion or contraction of'the silver plating as against the copper to prevent peeling oil of the silver plating from the copper.

D is a bail by which to carry the still.

E represents a small iron or steel spout which is spoon shaped in the middle into which the drops of mercury drop the spoon shaped part being centrally located under the center or point ofthe cover into which the mercury drops as fast as the vapors of mercury are condensed and collected on the silver plating the mercury flows down to the point of the cover and drops into said spout. The lower end of spout which is narrow from in the pot J into a pipe water in which the mercury is collected.

G is a funnel and plpe in one piece having at the lower what below the place where the spout E is fastened, in order that the mercury cannot flow into the spout when pouring the same into the inlet or funnel.

At H is lclosed during distillation so that not anv vapors of the mercury can possibly escape. Such an inlet is very convenient and necessary when distilling large quantities of mercury as the distilling can go on continually without the necessity of taking off the cover or the screws by which the cover is fastened or screwed tight to the pot as when the distilling is going on those parts become hot.

The cover as a rule is only to be taken ofi" when taking out any substances as metal or mineral matter or other impurities of the mercury thats left in the pot.

Fig. 3 shows a still without the water receptacle .O of Figs. 1 and 2'. Fig, 4 shows the construction of the conical bottom A and flanged ring B.

the small spoon shaped portion on pro- The mercury holding pot is made of a cheap metal such as iron, as is also the round flanged casting B unless it is desired to have B and A made in one piece of brass by casting in which case instead of making A in a separate piece, of copper, the brass cover B and A cast in one piece turned and finished on the lower side and then silver plated, making the vapor collecting cover of brass and silver. Fig. 5 shows a retort or still in which this conical shaped cover is reversed the point or apex extending upwardly instead of downwardly as in the previously described forms the silver plating being on the lower side. In a still of this kind there is no spout required asin Figs. 1 and 2, the spout being replaced by what may be called a groove in the pot into which the mercury drops, which groove leads the mercury off to the outlet pipe as in Fig. 6. K shows the groove which is downwardly sloping to outlet pipe or hole; this groove is either cast in shape in making the pot when casting, or else by a piece of sheet iron or steel formed to shape and fastened in the'pot to its place by rivets.

Fig. 7 shows a still with sloping flanged top to which a flat silver plated cover-plate A riveted to a round flanged casting or the cover may be cast of brass in one piece if preferred. This pet has a groove in it also but only on the lower half of the slope as seen at L in which the mer cury comes down into and flows off into the outlet pipe F.

Any one of these stills will answer the purpose as far as rapid distillation and puritication is concerned, but by all means I prefer the forms shown in Figs. 1.23 and 4, Fig. 4 shows the vapor collecting cover I prefer because I like the principle of the construction better as lso that of the pots than of the other shaped or constructed kinds as in Figs. 5-6-7 but the principle of operation is the same in all of them.

What I claim is z- 1.. In a still for refining mercury a pot adapted to be heated for containing the mercury to be refined, means for admitting mercury to the pot, an outlet in said pot, a channel within the pot communicating with and inclined toward the outlet, a cover for the pot provided with means for condensing the mercury vapor and for collecting the condensed mercury and directing it to the channel whereby it is discharged from the still.

2. In a still for refining mercury, a pot adapted to be heated, means for charging impure mercury into the pot, an outlet in the upper part of the pot, a channel communicating with and inclined toward the outlet a cover having a lower surface sloping downwardly toward the channel and adapted to condense and collect the mercury and to direct it .into the channel whereby it is discharged from the still.

3. In a still for refining mercury, a receptacle adapted to be heated, means for charging the receptacle with mercury, an outlet to said receptacle, a channel adapted to direct collected mercury to the outlet, a cover on the receptacle having a silver plated lower surface adapted to condense and collect the mercury vaporized during heating and to direct it to the channel.

4. In a still for use in purifying mercury,

a downwardly a receptacleadapted to be heated, means for charging said receptacle with mercury, an outlet in the upper portion of the receptacle, a mercury collecting channel within the receptacle connected with and sloping toward said outlet, a cone shaped cover on said receptacle having a silver plated lower surface sloping downwardly toward the collecting channel, whereby the mercury condensed on the lower surface of the cover drains oil into the collecting channel.

5. In a still for purifying menury, a pot adapted to be heated, means for introdiwing impure mercury into the pot, a cover on said pot having a downwardly pointed cone shaped lower surface adapted to condense and collect vaporized mercury, an outlet in the upper portion of the pot a spout lead ing to said outlet and extending within the pot beneath the cone of the cover, an enlargement on the spout directly below the apex or point of the cone, adapted to catch mercury as it drips from the cover.

6. In a still for puril 'ing mercury, :1 pot adapted to be heated, a valved pipe connected with the pot for introducing impure mercury into the pot, a cover tightly secured to said pot, said cover consisting of a reeeptacle adapted to contain a cooling lluid and having a downwardly pointed conical bot.- tom projecting within the pot, a silver pluting on the lower surf, *e of said cover, an outlet in the upper portion of the pot, a pipe connected exteriorly of the pot with said outlet, a mercury receiving receptacle adapted to contain water into which saizl pipe projects and an inclined spout within the pot connected with said outlet and extending beneath the point or apex of the conical bottom of the cover, said spout being provided with a spoon shaped enlargement directly beneath the point of the cover, whereby the mercury which condenses and collects on the conical surface drains oil the point thereof into the spent and is directed out of the pot into the receiving vessel.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ltilllllltlNll ANTON lnltlh' M A X X.

itnesses:

A. F. Wnnnmin, J. S. BlRREL. 

